Job Title : Mainframe Developer
Location : Onsite - Omaha, NE / Remote
Experience Required : 10+ Years
Employment Type : Contract
Role Overview
We are seeking a highly experienced Mainframe Developer to support, modernize, and maintain enterprise mainframe applications. This role involves hands-on development, production support, and participation in modernization and decommissioning initiatives for legacy mainframe systems. The ideal candidate has deep technical expertise, strong problem-solving skills, and experience operating in mission-critical environments.
Key Responsibilities
Mainframe Development & Modernization
Design, develop, and enhance COBOL-based mainframe applications to support system improvements.
Contribute to mainframe modernization and decommissioning efforts , including refactoring and system transitions.
Production & Batch Support
Provide production support , including incident resolution and root-cause analysis.
Perform batch job monitoring and support , ensuring successful and timely processing.
Participate in firecall / on-call support rotations to address critical production issues.
System Operations & Maintenance
Maintain and troubleshoot applications using DB2, VSAM, JCL, and CICS .
Ensure application stability, performance, and data integrity across mainframe systems.
Collaboration & Documentation
Work closely with cross-functional teams to deliver high-quality solutions.
Document technical changes, support procedures, and operational runbooks.
Required Skills & Qualifications
10+ years of hands-on experience as a Mainframe Developer .
Strong expertise in Enterprise COBOL , JCL , DB2 , VSAM , and CICS .
Experience with batch processing, scheduling, and monitoring .
Hands-on experience with Topaz or similar mainframe development tools.
Proven experience supporting production environments and handling critical incidents.
Strong analytical, troubleshooting, and communication skills.
Key Competencies
Ability to work independently and in distributed teams
Strong ownership of application stability and support
Adaptability to modernization initiatives and evolving technologies
Calm and effective response in high-pressure production situations
Technical Skills
Enterprise COBOL | JCL | DB2 | VSAM | CICS | System Z | Batch Processing | Topaz | Mainframe Modernization | Production Support
Mainframe Developer • Omaha, NE, Nebraska, USA